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Sen Pei

@senpei.bsky.social
1.9K followers 547 following 126 posts

Asst Prof @ColumbiaMSPH. A mix of Infectious Diseases, Environmental Health, Network Science & Complex Systems. Views are my own. Website: senpei-cu.github.io

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Reposted by Sen Pei
CMMID @cmmid-lshtm.bsky.social · 01/09/2026
🏛️ We’re kicking off the first seminar of the new academic year with @senpei.bsky.social He will discuss how to use mathematical models to uncover hidden disease transmission, improve forecasting, surveillance, risk assessment, and outbreak control Details 🔽 www.lshtm.ac.uk/newsevents/e...
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Sen Pei @senpei.bsky.social · 03/08/2026
🌪️ We’re launching the Hurricane Mobility Tracker, an interactive dashboard showing how population movement changes before, during, and after hurricanes, using cellphone-derived foot-traffic data. Check it out and share with anyone who may be interested! 🔗 hurricane-mobility.fly.dev
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Sen Pei @senpei.bsky.social · 30/07/2026
I’m delighted to be an invited speaker at the ARCANE Workshop on Modeling Antimicrobial Resistance, October 19-21, 2026 in Paris. The call for abstracts is now open! Submit your abstract here: arcane.sciencesconf.org Thanks to the organizers. Look forward to seeing many colleagues in Paris!
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Sen Pei @senpei.bsky.social · 23/06/2026
Congratulations to Dr. Han Yong Wunrow on successfully defending his PhD in Applied Math at Columbia APAM! Han Yong is the first PhD student I co-supervised. His research advances data-driven ID modeling using data assimilation and AI. Excited for his next chapter at Google!
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Sen Pei @senpei.bsky.social · 09/06/2026
Congratulations to Fintan Mooney, our brilliant doctoral student at Columbia EHS, for passing his qualification exam today! Fin is passionate about research on extreme weathers and population health. We look forward to his impactful works in this space!
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Sen Pei @senpei.bsky.social · 01/06/2026
Great weather in Boston. Excited to be at NetSci Conference 2026 this week! Our group has two presentations - welcome to stop by and chat. Looking forward to the fantastic science near the Charles River!
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Sen Pei @senpei.bsky.social · 31/05/2026
👇 Great opportunity to work with Prof. Alan Cohen @cusciofhealth.bsky.social and me to develop novel metrics of biological health at the whole-organism level. Please reach out if you are interested!
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Sen Pei @senpei.bsky.social · 15/05/2026
Important work from @dalarsen.bsky.social on wastewater surveillance! Genetic variability in wastewater is a better indicator of community transmission. A great reminder that existing surveillance data often contain far more information than we currently extract. www.science.org/doi/10.1126/...
science.org
Genetic variability of SARS-CoV-2 in wastewater and associations with community transmission
Sequencing genetic material from community wastewater facilitates the study of virus diversity. Diversity can be estimated using the variation in nucleotides and number of variants identified, increas...
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Sen Pei @senpei.bsky.social · 27/04/2026
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Jessica Metcalf @jessmetcalf.bsky.social from Princeton University on 5/5 Tue at 12 pm ET! Open to the public over Zoom. For information and registration: events.columbia.edu/cal/event/ev...
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Sen Pei @senpei.bsky.social · 13/04/2026
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Pejman Rohani from the University of Georgia on 4/21 Tue at 2 pm ET! Open to the public over Zoom. For information and registration: events.columbia.edu/cal/event/ev...
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Sen Pei @senpei.bsky.social · 31/03/2026
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Jeff Imai-Eaton @jeff-imai-eaton.bsky.social from Harvard @hsph.harvard.edu on 4/7 Tue at 12 pm ET! Open to the public over Zoom. For information and registration: events.columbia.edu/cal/event/ev...
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Sen Pei @senpei.bsky.social · 25/03/2026
Really enjoyed presenting at the Columbia Global Research Stabilization Fund Spring Showcase today. RSF’s support last year was critical in keeping our epidemic forecasting work moving. Inspired by the breadth of research and looking forward to what comes next!
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Reposted by Sen Pei
Vittoria Colizza @vcolizza.bsky.social · 19/03/2026
Join ESPIDAM 2026 — the European Summer Program in Infectious Disease Analysis & Modelling! A unique training opportunity for early-career researchers in epidemic modelling 🦠📊 ⏳ Early bird deadline: March 31 www.su.se/english/divi...
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Reposted by Sen Pei
The Ferrari Lab @theferrarilab.bsky.social · 19/03/2026
Come work with me at Penn State on the dynamics of pathogen elimination. We're hiring up to two positions to support our work on measles/rubella and foot and mouth disease elimination @ciddpsu.bsky.social
psu.wd1.myworkdayjobs.com
Postdoctoral Scholar - Ferrari lab
APPLICATION INSTRUCTIONS: CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, a...
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Sen Pei @senpei.bsky.social · 18/03/2026
It was a great pleasure to host a visit by @theferrarilab.bsky.social ! Super interesting talk and tons of impactful works on measles and rubella.
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Sen Pei @senpei.bsky.social · 13/03/2026
Honored to be elected as a Steering Committee Member of the MIDAS network @midas-network.bsky.social Grateful to give back to a community that has shaped my career, and looking forward to supporting early-career investigators and strengthening engagement with international scholars.
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Reposted by Sen Pei
Vittoria Colizza @vcolizza.bsky.social · 10/03/2026
Two postdoc positions open at SUMOC (Sorbonne Université | INSERM), Paris, within the EPIcx lab. 🦠 Network epidemiology of healthcare-associated infections (ARCANE) 🧠 Coupled behavior–disease modeling (PREVIX) 2-y positions | Start June 2026 #epidemiology #networks #matrices
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Sen Pei @senpei.bsky.social · 09/03/2026
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Matthew Ferrari @theferrarilab.bsky.social from Penn State on 3/17 Tue at 12 pm EST! Open to the public over Zoom. For more information and registration: events.columbia.edu/cal/event/ev...
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Sen Pei @senpei.bsky.social · 03/02/2026
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Virginia Pitzer from Yale on 2/10 Tue at 12 pm EST! Open to the public over Zoom. For more information and registration: events.columbia.edu/cal/event/ev...
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Sen Pei @senpei.bsky.social · 28/01/2026
Presymptomatic transmission is a key determinant of the controllability of respiratory viruses. This nice study used household data to quantify presymptomatic transmission of influenza and Omicron. Important findings with implications for modeling and control. www.nature.com/articles/s44...
nature.com
Frequent presymptomatic household transmission of influenza A but not influenza B virus - Nature Health
Based on two waves of data collection from 748 households in Hong Kong, this analysis sheds light on the number of transmission events that occurred before manifestation of symptoms in influenza A and...
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Reposted by Sen Pei
Simon Cauchemez @scauchemez.bsky.social · 19/01/2026
Dont miss the ESPIDAM summer program in June 2026 in Stockholm, covering many key concepts for ID modelling: stochastic models, AI for ID control, nowcasting and forecasting, phylodynamics, data analysis, network models, within-host models, health economics www.statistics.su.se/english/divi...
statistics.su.se
ESPIDAM, the European Summer Program in Infectious Disease Analysis and Modelling - Stockholms universitet
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Sen Pei @senpei.bsky.social · 06/01/2026
Excited to share a new study published in PNAS! @pnas.org We reconstructed the early, cryptic spatial spread of 2009 H1N1 influenza and SARS-CoV-2 across US metropolitan areas. Link👉https://www.pnas.org/doi/10.1073/pnas.2518051123 #PandemicPreparedness #InfectiousDisease #HumanMobility
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Sen Pei @senpei.bsky.social · 31/12/2025
2025 was a challenging year for many of us. As the year comes to a close, let's pause to recognize and celebrate every accomplishment and milestone, big or small. Each step forward matters. As we head into 2026, let’s keep climbing with aspiration, resilience, and strength!
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Sen Pei @senpei.bsky.social · 18/12/2025
Glad to share our latest study, led by Han Yong Wunrow @hwunrow.bsky.social, on estimating time-varying reproduction numbers (Rt) using data assimilation methods, now published in the Journal of the Royal Society Interface! Link: royalsocietypublishing.org/rsif/article...
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Sen Pei @senpei.bsky.social · 11/12/2025
I am teaching Introduction to Network Science for a third year at Columbia Mailman! @cupublichealth.bsky.social Very grateful to have positive evaluations from students with diverse backgrounds. Welcome to join this small-size, engaged course if you are interested in networks and systems thinking!
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Sen Pei @senpei.bsky.social · 10/12/2025
Very interesting study on respiratory virus transmission in schools! "Prolonged exposure in shared, poorly ventilated spaces, which potentially includes several infectious sources, drives respiratory virus transmission more than close contact." www.nature.com/articles/s41...
nature.com
The relative contribution of close-proximity contacts, shared classroom exposure and indoor air quality to respiratory virus transmission in schools - Nature Communications
The relative importance of close-proximity interactions, shared space and air quality to the transmission of respiratory viruses is not well understood. Here, the authors investigate this question by ...
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Sen Pei @senpei.bsky.social · 08/12/2025
Welcome to join Columbia Mailman @cupublichealth.bsky.social seminar series on infectious disease modeling featuring Prof. Mark Jit @markjit.bsky.social from NYU on 12/16 Tue at 12 pm EST! Open to the public over Zoom. For more information and registration: 👉 events.columbia.edu/cal/event/ev...
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Sen Pei @senpei.bsky.social · 30/11/2025
Grateful to @natcomms.nature.com for featuring our AMRO inference study as one of the Editors’ Highlights in #PublicHealth: www.nature.com/collections/...
nature.com
Public health
Our recent highlights in the field of public health, including epidemiological studies investigating the social, environmental, genetic, and behavioural ...
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Sen Pei @senpei.bsky.social · 29/11/2025
Sunny and warm in San Diego. Preparing for #EPIDEMICS10 next week!
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Sen Pei @senpei.bsky.social · 19/11/2025
Sharing our new study on identifying asymptomatic carriers of antimicrobial-resistant organisms (AMROs) in hospitals, out in @natcomms.nature.com. We combine patient mobility, clinical cultures, EHR, and genomics to identify hidden AMRO carriers. #AMR #HAI #HospitalEpi Link 👉 rdcu.be/eQKKF 1/
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Sen Pei @senpei.bsky.social · 14/11/2025
A super interesting study on how ants alter their nest networks to prevent epidemics! Network topology metrics were used to measure the effect on disease transmission. www.science.org/doi/full/10....
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Sen Pei @senpei.bsky.social · 12/11/2025
Excellent work on the ecology and spread of H5N1 in North America 👉
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Sen Pei @senpei.bsky.social · 11/11/2025
Fantastic talk by Dr. Holden Thorp, Editor-in-Chief of Science, on the future of scientific research. Especially inspiring to hear how many scientific giants pushed forward even when others tried to stop them. In times of uncertainty and challenge, do the work.
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Sen Pei @senpei.bsky.social · 04/11/2025
Our group is presenting at the MIDAS Network Annual Meeting! I will present on reconstructing the early spatial spread of pandemics in the US. Dr. Qing Yao will discuss the use of GNN to predict adaptive mobility for improving epidemic forecasts. Welcome to join us! @midas-network.bsky.social
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Sen Pei @senpei.bsky.social · 27/10/2025
Oof, this is a tough one...
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Sen Pei @senpei.bsky.social · 07/10/2025
Fall is coming. Enjoy a warm and colorful afternoon in the woods. 🍁
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Sen Pei @senpei.bsky.social · 06/10/2025
Hurricanes don’t stop at the coast. Our recent study, published in Environ Res Lett, shows inland communities are less likely to evacuate, leaving them more vulnerable as storms like Helene bring historic flooding and loss of life. Paper 👉 doi.org/10.1088/1748...
doi.org
Adaptive mobility responses during Hurricanes Helene and Milton in 2024 - IOPscience
Adaptive mobility responses during Hurricanes Helene and Milton in 2024, Yao, Qing, Lynch, Victoria D., Liu, Molei, Wu, Xiao, Parks, Robbie, Pei, Sen
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Sen Pei @senpei.bsky.social · 12/09/2025
🚨 JOB ALERT! Our group is recruiting a postdoc to develop novel methodologies for early outbreak detection and inference using AI/ML, modeling, and data science. This is a multi-year position providing stable research support. Welcome to apply and share with others! 👉 apply.interfolio.com/173722
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Sen Pei @senpei.bsky.social · 30/07/2025
So proud to support Nidhi Ram’s presentation in the Science Research Fellows program! Nidhi is a freshman and an SFR fellow, a prestigious four-year designation for some of Columbia’s most promising science students. Truly impressed by the intellect, maturity and academic ability of all fellows.
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Reposted by Sen Pei
Robbie M. Parks @robbieparks.bsky.social · 22/07/2025
A small team of us at Columbia (Sen Pei, Qing Yao, and me) collaborated with @washingtonpost.com to create a data-driven story about Hurricane Helene flooding and lack of evacuation added to the severe impacts: www.washingtonpost.com/climate-envi...
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Sen Pei @senpei.bsky.social · 22/07/2025
Are we prepared for intensifying and expanding disasters caused by climate change? How to plan for floods that we’ve never seen in our lives? Read this fantastic story in the Washington Post, including our mobility analysis during Hurricane Helene in 2024. 1/ www.washingtonpost.com/climate-envi...
washingtonpost.com
A new era of floods has arrived. America isn’t prepared.
A Washington Post investigation reveals why so few people evacuated in the state hit hardest by last year’s deadliest disaster.
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Sen Pei @senpei.bsky.social · 14/07/2025
First day at SMB 2025 @smbmathbiology.bsky.social in the beautiful city of Edmonton! Today, we have a minisymposium "Scenario Modeling to Inform Public Policymaking" (10:20 am and 4 pm) with excellent talks on bridging mathematical models and policymaking. Welcome to stop by and join the discussion!
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Sen Pei @senpei.bsky.social · 20/06/2025
Excited to see this paper out in Science Advances, led by Prof. Alan Cohen @cusciofhealth.bsky.social. The definition of health should go beyond being free of disease. Our human body works as a complex dynamical system, and measuring health requires a perspective from complex systems.
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Sen Pei @senpei.bsky.social · 30/04/2025
Sharing our new study out in PLoS Comput Biol. We developed a behavior-driven epidemic model to generate neighborhood-level COVID-19 forecasts across NYC. We used mobile foot traffic data to measure how and where people mix and forecast local spread. Read here: doi.org/10.1371/jour...
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Sen Pei @senpei.bsky.social · 17/04/2025
So glad to have @jgyou.bsky.social give an intriguing lecture on contagion modeling and network inference in our network science class!
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Reposted by Sen Pei
Science of Health at Columbia University @cusciofhealth.bsky.social · 13/04/2025
We are Science of Health, a collaborative initiative led by faculty from Columbia University—scientists, physicians, and theorists transforming how we understand health, from cellular biology to daily life. Our aim: nothing less than a revolution in biomedicine. #SystemsOfHealth #HealthRevolution
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Sen Pei @senpei.bsky.social · 03/04/2025
It was great to have @danielmalinsky.bsky.social give an excellent lecture on casual graph discovery in my network science class today!
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Sen Pei @senpei.bsky.social · 10/02/2025
I decide to put down my work and have some ice cream tonight.
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Sen Pei @senpei.bsky.social · 04/02/2025
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Joshua Warren from Yale on 2/11 at 1 pm EST! Open to the public over Zoom. For more information and registration: events.columbia.edu/cal/event/ev...
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